From 11eebe3e49b34365f71dc1227150114c374a272d Mon Sep 17 00:00:00 2001
From: swd <swda.durl@gmail.com>
Date: Sat, 31 Oct 2015 23:22:15 +0900
Subject: [PATCH] null check

Append a code to check a null, because when window is null, it cause an error.
---
 src/context.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/context.c b/src/context.c
index 36840e55a..73a0c7774 100644
--- a/src/context.c
+++ b/src/context.c
@@ -543,7 +543,7 @@ GLFWAPI void glfwMakeContextCurrent(GLFWwindow* handle)
 
     _GLFW_REQUIRE_INIT();
 
-    if (window->context.api == GLFW_NO_API)
+    if (window != NULL && window->context.api == GLFW_NO_API)
     {
         _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
         return;